//**************************************************************
// jQZoom allows you to realize a small magnifier window,close
// to the image or images on your web page easily.
//
// jqZoom version 1.2
// Author Doc. Ing. Renzi Marco(www.mind-projects.it)
// Released on Dec 05 2007
// i'm searching for a job,pick me up!!!
// mail: renzi.mrc@gmail.com
//**************************************************************

(function($){

		$.fn.jqueryzoom = function(options){

		var settings = {
				xzoom: 200,		//zoomed width default width
				yzoom: 200,		//zoomed div default width
				offset: 10,		//zoomed div default offset
				position: "right"  //zoomed div default position,offset position is to the right of the image
			};
			
			var imageLeft = imageTop = 0,o = $(this);
			while(o[0].tagName != 'BODY'){
				imageLeft+=o[0].offsetLeft;
				imageTop+=o[0].offsetTop;
				var o=o.offsetParent();
			}

			if(options) {
				$.extend(settings, options);
			}

            var noalt ='';

		$(this).hover(function(){
			
		    var imageWidth = $(this).get(0).offsetWidth;
		    var imageHeight = $(this).get(0).offsetHeight;

		    var bigimage = $(this).attr("alt");
                noalt = $(this).attr("alt");
                $(this).attr("alt",'');
                

		    if($("div.zoomdiv").get().length == 0){

		    $(this).after("<div class='zoomdiv'><img class='bigimg' src='"+bigimage+"'/></div>"); 

		    }

		    $("div.zoomdiv").css({ top: -1,left: 420});

		    $("div.zoomdiv").width(settings.xzoom);

		    $("div.zoomdiv").height(settings.yzoom);

		    $("div.zoomdiv").show();


					$(document.body).mousemove(function(e){
					
				    var bigwidth = $(".bigimg").get(0).offsetWidth;

				    var bigheight = $(".bigimg").get(0).offsetHeight;

				    var scaley ='x';

				    var scalex= 'y';


				    if(isNaN(scalex)|isNaN(scaley)){

				    var scalex = Math.round(bigwidth/imageWidth) ;

				    var scaley = Math.round(bigheight/imageHeight);

				    }

					mouse = new MouseEvent(e);


					scrolly = mouse.y - imageTop - ($("div.zoomdiv").height()*1/scaley)/2 ;

					$("div.zoomdiv").scrollTop(scrolly * scaley) ;

					scrollx =    mouse.x - imageLeft - ($("div.zoomdiv").width()*1/scalex)/2 ;
					
					$("div.zoomdiv").scrollLeft(scrollx * scalex);


				    });
		    },function(){
                   $(this).attr("alt",noalt);
		       $("div.zoomdiv").hide();
		       $(document.body).unbind("mousemove");
		       $(".lenszoom").remove();
		       $("div.zoomdiv").remove();
		    });

		}

})(jQuery);

function MouseEvent(e) {
this.x = e.pageX
this.y = e.pageY
}